Bone-cutting mill



i No Model.) 2 Sheetsf-Sheet 1.

J. POULSON. BONE GUTTINGIMILL.

Patented Nov. 14, 1893.

(No Model.) 2 Sheets-Sheet 2.

J. POULSON. BONE CUTTING MILL.

No. 508,528. Patented Nov. 14, 1893.

N norm. Lmnoannwnme coMPAnv tive of the hollow cuttinglcylinder.

UNITED STATES lPATENT Ottica.

JOHN-POULSON, OF PHILLIPSBURG, NEW JERSEY.

BoNjE-cuT-rme MILL.

SPECIFICATION forming part of Lette'IS Patent NO. 508,528, datedNovember 14, 1893. Application iiled June 14| 1893. Serial No. 4177.573.(No model.)

To all whom it may concern:

Be it known that I, JOHN PoULsoN, a citizen of the UnitedStates,residing at Phillipsburg, in the county of Warren and State of NewJersey, have invented a new and useful Bone-Cutting Mill, of which thefollowing is a specification.

This invention relates t0 bone cutting mills; and it has for its objectto provide certain improvements in mills or machines'for cutting orreducing bones to a finely divided state, for poultry or other uses,whereby the mill will be rendered much more available for practical use,and shall be so constructed as to provide for an efficient operation.

' With these and other objects in View which will readily appear as thenature of the invention is better understood, the same consists in thenovel construction, combination and arrangement of parts hereinaftermore fullyr described, illustrated and claimed.

In the accompanying drawings:-Figure 1 is a perspective view of a bonecutting mill constructed in accordance with-this invention. nalsectional view of thelrmill.' Fig. V3 is a vertical transverse sectionalview on the line :cof Fig. 2. Fig'. 4 is a detail in perspec- Fig. 5 isa similar View of the enlarged bearing ring and the adjustable attachingplate thereof. Fig. 6 is a detail lsectional view showing the adjustableconnection of the spindle bearing arm with the base plate.

Referring to the accompanyingy drawings,

A represents a suitable leg, stand or support on which is mounted thebase plate B, of the herein-described bone cutting mill. The base plateB, has integrally cast therewith at one edge the curved casing fiange C,which is an arc of a circle, and is adapted to form a short partialcasing for the cutting cylinder to be presently described.

vThe shortl curved casing iiange C, which extends upwardly and out fromlone edge of the base plate B, has arising from the upper outer edgethereof the open rectangular hopper box D. The open rectangularhopperbox D, projects above the plane of the Vshort casing ange C, andis a part of the same casting, together with such casingvflange and theFig. 2 is a central'verticallongitudi-n base plate of the mill, and saidlrectangular hopper D, is provided with lower curved bearing edges E,which form a part of the same circle as the casing iiange C, and areadapted yt0 snugly receive the top portion of the circular periphery ofthe hollow cutting cylinder F. The hollow cutting cylinder F, is closedat one end as at G, and is open lat the opposite end thereof to providefor the free discharge of the cut material, which falls inside of thecylinder during the operation of cutting, and said cutting cylinder F,has projected from the closed end thereof the lateralofi-standing drivespindle H, which is mounted in the bearing collar I, at the outer end ofthe adjustable bearing arm J. The bearing arm J, is provided with theslotted openings K, adapted to rcceive the clamping and adjustment boltsL, which also pass through perforations Z, in the base plate, andprovide means whereby the bearing arm and its bearing collar can be adjusted on the base plate to take up the wear on the bearing edges of thehopper, and also to properly adjust the cutting cylinder to theshortecasing flange O. The open end of the hollow cutting cylinder F,projects slightly beyond one side of the open rectangular hopper D,'and'works inside of the enlarged bearing ring M. Theenlarged bearing ring M,snugly encircles the open projected end of the cutting cylinder, so asto form a strong bearing for that end of the cylinder, and ltherebyproviding means forholding the same firmly to its work. The enlargedbearing ring M, is arranged at theouter end of the adjustable'attachment plate or arm N. The attachment plate or arm N, isprovided with the enlarged openings or slots n adapted vto receive theclamping or adjusting bolts O",I which also pass through the base platevand provide means for adjusting the bearing ringy;

in the same manner as the bearing for the spindle of the cuttingcylinder.

The hollow cutting cylinder F, is provided with two or more inclinedknife openings P,

through 'whichv project the'1 beveled cutting edges Q, of the inclinedknife platesfq. The knife plates q, are provided'with slotted open- IOObind the knife plates onto the shoulders r', inside of the cylinder. Theprojection of the cutting edges of theinclined knives, through the knifeslots or openings in the cylinder, is

terial much more certain and eicient, and itV may be observed at thispoint that the cutting cylinder and its projecting knives travel out ofcontact with the short casing flange C, so that the machine or mill willnot choke, but will give an opportunity for its knives to have a play onthe material which has been carried out of the hopper.

The open rectangular hopper D, is arranged directly above the center ofthe cutting cylinder which works directly thereunder, and by suchdisposition also materially assists in preventing the bones from wedgingor choking on the cylinder, and such bones o1' other material to be cut,are pressed onto the top of the revolving cutting cylinder by means ofthe rectangular follower plate or block T. The rectangular followerplate or block T, lits snugly within the open rectangular hopper and isprovided with a bifurcated arm t, adjustably bolted to the hand lever U,at a point intermediate of its ends. The hand lever U,

is pivoted at one end between the lugs V, of Y the pivot casting o,secured to the upper extremity of the vertical adjustable and turninglever standard WV. The vertically adjustable lever standard W, isprovided with a lower threaded end X, adapted to adj ustably engage andturn in the threaded socket or opening Y, formed in the base plateB, ofthe machine, and it will be observedthat by reason of the lever standardturningin said threaded socket or opening, the follower plate or block,after being lifted out of vthe hopper, can be swung around out of theway if found necessary or convenient when refilling the hopper oradjusting the machine.

An operating hand wheel Z, is fastened to the outer extremity of thedrive spindle H, of the cutting cylinder and provides means foroperating the mill. Now it will be clear that by grasping the hand leverwith one hand and pressing the material onto the cutting cylinder, andby turning the hand wheel Z, with the other hand, the mill can be easilyand rapidly operated by a single person.

From the foregoing it is thpught that. the construction, operation andmany advantages of the herein-described bone cutting mill will bereadily apparent to those skilled in the art without furtherdescription, and I will have it understood that changes in the form,proportion and the minor details of construction may be resorted towithout departing from the principle or sacrilcing any ofthe advantagesof this invention.

erases Having thus described the invention,what is claimed, and desiredto be secured by Letters Patent, is

l. In a bone cutting mill, the base plate having an integraloff-standing open hopper, bearings arranged at each side of the hopperand attached to opposite sides of the base plate a rotating cuttingcylinder arranged to work directly under said hopper, and havingprojected end portions journaled in the opposite side bearings and alever controlled follower plate adapted towork inside of said hopper,substantially as set forth.

2. In a bone cutting mill, the base plate having an integralolf-standing open hopper box provided with lower curved edges, an ad-`justable cutting cylinder arranged to work directly under said hopperand in the curved edges thereof,and a hand controlled follower platefitting `inside ofthe hopper,substan tially as set forth.

3. In a bone cutting mill, the base plate` 4. In a bone cutting mill,the base plate` having an integral shortcurved casing flange at one edgeand an open rectangular hopper box extended above andbeyond said casingange and-provided with lower curved bear.- ing edges forminga part ofthe same circle as said casing flange, an adjustable cutting cylinderarranged to work directly under Said hopper in the curved bearing edgesthereof and in close proximity to said casing flange, anda feedingfollower for the hopper, substantially as set forth. I

5. In a bonecutting mill, the base plate having an oE-standing hopperbox, bearings adjustably attached to the base plate ateach side of thehopper box, and a rotating cutting cylinder arranged to work directlyunder said hopper box and journaled in saidadjustablebearingssubstantially as set forth.

6. In a bone cutting mill, the baseiplate having an o-standing openhopper, a bearing arm adj ustably attached to the base plate at one sideof the hopper and having a bearing collar at one end, an opposite plateor arm adjustably attached to said base plate at the other side of thehopper box, and having at one end an enlarged circular bearing ring, anda cutting cylinder arranged to work directly under said hopper andprovided at one end withan oE-standing drive spindle journaled in saidbearing collar and having one side projected beyond the other end of thehopper and journaled in said bearing ring, substantially as set forth.

7. In a bone cutting mill, the combination with the cutting devices andthe open hopper v IIO of the plane of the hopper, when liftedtherefrom', by turning the vertically adjustable 1ever standard in itsthreaded socket or opening, substantially as Set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses Y JOHN POULSON.

Witnesses:

F. F. DRINKHOUSE, WM. WALTERS.

